The Audi A4 (B9 8W) 2.0 TDI quattro, produced from 2015 to 2017, represents a significant iteration of Audi’s popular executive sedan. Positioned as a mid-range offering within the B9 A4 lineup, this variant combined a potent 2.0-liter turbocharged diesel engine with Audi’s renowned quattro all-wheel-drive system. It served as a compelling alternative to both the entry-level 1.4 TFSI and the higher-performance variants, appealing to drivers seeking a balance of fuel efficiency, performance, and all-weather capability. The B9 generation A4, built on the MLB Evo platform, aimed to deliver a more refined driving experience and incorporate the latest in Audi’s technology.
Technical Specifications
| Brand | Audi |
| Model | A4 |
| Generation | A4 (B9 8W) |
| Type (Engine) | 2.0 TDI (190 Hp) quattro |
| Start of production | 2015 |
| End of production | 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5.3-5.4 l/100 km (44.4 – 43.6 US mpg, 53.3 – 52.3 UK mpg, 18.9 – 18.5 km/l) |
| Fuel consumption (extra urban) | 4.0-4.2 l/100 km (58.8 – 56 US mpg, 70.6 – 67.3 UK mpg, 25 – 23.8 km/l) |
| Fuel consumption (combined) | 4.5-4.6 l/100 km (52.3 – 51.1 US mpg, 62.8 – 61.4 UK mpg, 22.2 – 21.7 km/l) |
| CO2 emissions | 119-116 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.2 sec |
| Acceleration 0 – 62 mph | 7.2 sec |
| Acceleration 0 – 60 mph | 6.8 sec |
| Maximum speed | 236 km/h (146.64 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.1 kg/Hp, 123.4 Hp/tonne |
| Weight-to-torque ratio | 3.9 kg/Nm, 259.7 Nm/tonne |
| Power | 190 Hp @ 3800-4200 rpm |
| Power per litre | 96.5 Hp/l |
| Torque | 400 Nm @ 1750-3000 rpm (295.02 lb.-ft. @ 1750-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | DETA |
| Engine displacement | 1968 cm3 (120.09 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 81 mm (3.19 in.) |
| Piston Stroke | 95.5 mm (3.76 in.) |
| Compression ratio | 15.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4.7 l (4.97 US qt | 4.14 UK qt) |
| Kerb Weight | 1540 kg (3395.12 lbs.) |
| Max. weight | 2125 kg (4684.82 lbs.) |
| Max load | 585 kg (1289.7 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 965 l (34.08 cu. ft.) |
| Fuel tank capacity | 58 l (15.32 US gal | 12.76 UK gal) |
| Max. roof load | 90 kg (198.42 lbs.) |
| Permitted trailer load with brakes (8%) | 2000 kg (4409.25 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 80 kg (176.37 lbs.) |
| Length | 4726 mm (186.06 in.) |
| Width | 1842 mm (72.52 in.) |
| Width including mirrors | 2022 mm (79.61 in.) |
| Height | 1427 mm (56.18 in.) |
| Wheelbase | 2820 mm (111.02 in.) |
| Front track | 1572 mm (61.89 in.) |
| Rear (Back) track | 1555 mm (61.22 in.) |
| Front overhang | 880 mm (34.65 in.) |
| Rear overhang | 1026 mm (40.39 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle (turning diameter) | 11.6 m (38.06 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/50 R17; 245/40 R18; 245/35 R19 |
| Wheel rims size | 7.5J x 17; 8J x 18; 8J x 19 |
Powertrain & Engine Architecture
The heart of the A4 2.0 TDI quattro is the DETA engine, a 2.0-liter inline-four cylinder diesel engine. This engine is part of the Volkswagen Group’s modular engine family, known for its efficiency and refinement. The DETA utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A single turbocharger, often with variable geometry turbine (VGT) technology, provides forced induction, boosting power and torque. The engine also features an intercooler to reduce intake air temperature, further enhancing performance. The B9 A4 2.0 TDI typically came equipped with a six-speed manual transmission, although a seven-speed S tronic dual-clutch transmission was also available as an option. The quattro all-wheel-drive system employs a Torsen center differential, distributing torque between the front and rear axles as needed, providing excellent traction in various conditions.
Driving Characteristics
The 190 horsepower and 400 Nm (295 lb-ft) of torque delivered by the 2.0 TDI engine provided the A4 with brisk acceleration. The 0-60 mph sprint took approximately 6.8 seconds, making it a competitive performer in its class. While not as overtly sporty as the higher-output variants, the 2.0 TDI offered ample power for everyday driving and highway cruising. The six-speed manual transmission provided a direct and engaging driving experience, although the gear ratios were tuned more for fuel efficiency than outright performance. Compared to the 1.4 TFSI, the 2.0 TDI offered significantly more torque, resulting in stronger mid-range acceleration. The quattro all-wheel-drive system instilled confidence in slippery conditions, providing enhanced stability and grip.
Equipment & Trim Levels
The A4 2.0 TDI quattro typically came standard with features such as automatic climate control, a multi-function steering wheel, power windows and locks, and an infotainment system with a color display. Higher trim levels offered upgrades such as leather upholstery, heated front seats, a sunroof, and a premium sound system. Optional extras included navigation, parking sensors, and advanced driver-assistance systems like adaptive cruise control and lane departure warning. Interior trim options ranged from cloth to leather, with various wood or aluminum accents available.
Chassis & Braking
The B9 A4 featured a sophisticated chassis design with independent multi-link suspension at all four corners. This setup provided a comfortable ride while maintaining good handling characteristics. The front suspension utilized aluminum subframes to reduce weight and improve rigidity. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) were standard features, enhancing safety.
Market Reception & Comparison
The Audi A4 2.0 TDI quattro was generally well-received by automotive critics. It was praised for its refined driving experience, fuel efficiency, and all-weather capability. Compared to its rivals, such as the BMW 3 Series and Mercedes-Benz C-Class, the A4 offered a compelling combination of performance, luxury, and technology. The 2.0 TDI variant was often seen as a sweet spot in the A4 lineup, offering a good balance of power and economy. Fuel economy figures of around 52 mpg combined made it an attractive option for drivers seeking to minimize running costs.
Legacy
The DETA engine, found in the A4 2.0 TDI quattro, has proven to be a relatively reliable powertrain. However, like all diesel engines, it is susceptible to issues related to the diesel particulate filter (DPF) and the exhaust gas recirculation (EGR) system, particularly if the vehicle is primarily used for short trips. In the used car market, the B9 A4 2.0 TDI quattro remains a popular choice, offering a blend of practicality, performance, and prestige. Regular maintenance and adherence to recommended service intervals are crucial for ensuring the long-term reliability of this vehicle.
